ITV SC 10TN, Technical & Service Manual

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E N G L IS H
3. Stop
When the “Start/Stop” button is switched off, water pump and solenoid valve stop working immediately, and the gear box stops
working too after a 3-minute delay so as to remove the ice left on the interior of the vaporization cylinder. Now the pneumatic
switch shall not be turned off before being delayed for 3 minutes.
Stoppage due to alarm
Stoppage due to ice full level alarm (normal stop):
When microprocessor of computer’s main board detects full level of ice storage tank, the programmed process of ice full level
shall be implemented: water pump and solenoid valves stop first, and then gear box motor stops after 3-minute delay and ice full
level indicator turns on at the same time. Now the system is in stand-by mode. After ice is discharged, the system automatically
restore to normal operating status: gear box motor, water pump and solenoid valve will be started in sequence.
IMPORTANT!
ADVISE THE FINAL USER ON MAINTENANCE PROCEDURES WHICH ARE NOT INCLUDED IN WARRANTY, AS WELL AS
THOSE BREAKDOWNS CAUSED BY NEGLECT OF PROPER MAINTENANCE PROCEDURES.
MAINTENANCE AND CLEANING INSTRUCTIONS
IMPORTANT!
**Maintenance and cleaning procedures as well as problems derived from failing to carry them out are not covered by the
warranty.
Proper maintenance is essential to obtain favourable ice quality and optimum functioning of unit.
Frequency depends on water quality and characteristics of room where unit is installed.
** Maintenance/cleaning procedures should take place at least once every six months. If concentration of air pollutants is high,
complete procedures on a monthly basis.
Important Maintenance for Removable Electromagnetic Valve (See Figure9 and Figure10)
1. During the preliminary stage of ice production (Approx one-week or one month), cleaning for Electromagnetic valve
shall be carried out by well-trained (or professional) maintenance staff to avoid solenoid core, fore-guide valve hole
and piston from being block or stuck. Before dismantling and cleaning the solenoid’s pipeline, the refrigerant in
it shall be completely discharged.
2. Tap water quality shall be guaranteed and periodic cleaning shall be carried out for water tank and feed water
pipelines to ensure smooth access of water system, and all pipe fittings shall be free of leak.
3. Regular inspection shall be carried on the level of water dispensing pan, which shall be in line with the red mark, and
can be regulated by the water valve beside the water dispersing pan, and on the status of water outflow to prevent
water from dripping into ice storage tank or ice conveying system.
4. Regular inspection shall be conducted on the connections to verify they are not loose or dummy connections, and
earth wire is fixed, insulation of electrical parts not damaged.
5. Frequent inspection on refrigeration pipelines and valves shall be conducted to identify their leakages and loosing or
leaking at flange fittings.
6. Good housekeeping shall be maintained for main parts of ice machine like gear box and control cabinet
7. Regular inspection on ice blade spacing shall be conducted. Too big spacing between ice blades will affect the
removal of ice.
8. Lube oil for gear box shall be checked and changed on a regular basis
9. Maintenance and use of valves.
Regular application of rustproof oil shall be carried out on surface of valve rod and lock nuts to ensure smooth diverting and keep
valve rod and seal free of damag.
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